LEGO Set

Robo Technology Set (Serial Cable)

9785-1

Released: 2003 · Parts: 221 · Theme: RCX

Robo Technology Set (Serial Cable) (9785-1) is a RCX LEGO set released in 2003 with 221 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing RCX sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 68 unique part types.

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Buying checklist

Quick context before you buy this set used or verify a marketplace listing.

Release year

2003 (23 years ago — may be retired)
Catalog scale

221 parts listed · 68 inventory lines tracked
Minifigures

No minifigs in inventory (brick-only or Technic set)
Build manual

Digital booklet available on this page — use it to verify bag contents
Gray era

Pre-2004 set — may use old light/dark gray instead of bluish gray
Shipping weight (est.)

~469 g for parts inventory (excludes box/minifig packaging)
Before you buy used

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Related sets in this theme

Robo Technology Set [USB Cable]

9786-1 · 2003 · RCX

222 parts

ROBOLAB Amusement Park Set

9725-1 · 1999 · RCX

248 parts

ROBOLAB Amusement Park Set

9725-2 · 2002 · RCX

270 parts

ROBOLAB Intelligent House Building Set

9795-1 · 2001 · RCX

164 parts

ROBOLAB Amusement Park Set

9725-3 · 2005 · RCX

306 parts

Infrared Transmission Tower

9713-1 · 1998 · RCX

2 parts

Infrared Transmitter with USB Cable

9783-1 · 2001 · RCX

1 parts

RCX Programmable Brick

9709-1 · 1998 · RCX

1 parts

Market value

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